171880040

素因数分解:

$2^3\times 5^1\times {\mathrm{4297001}}^1$

素因数の和:4297012

約数の個数: 16

約数和(自身を含む): 386730180

約数和(自身を除く): 214850140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4297001, 8594002, 17188004, 21485005, 34376008, 42970010, 85940020, 171880040]

約数ペア:

[(1, 171880040), (2, 85940020), (4, 42970010), (5, 34376008), (8, 21485005), (10, 17188004), (20, 8594002), (40, 4297001)]